Throttle Body
Joined: Sep 2000
Posts: 2,504
Likes: 195
From: Moorpark, CA
Car: '91 GTA, '92 T/A Convertible
Engine: GTA: 350 w/Vortec heads, T/A: 305
Transmission: Pro-built 700R4
Axle/Gears: GTA: 3.27, T/A: 2.73
Re: Throttle Body
It's the IAC housing with a passage for coolant to warm the throttle body up. Bypassing that coolant passage is a common mod to help keep the incoming air cooler.
Joined: Dec 2004
Posts: 16,754
Likes: 996
From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: Throttle Body
The part is nla, tpis has a bypass one or can post in the classifieds wanted . Or cut to bypass the coolant ports and clean up looks .
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